Release History - Feb 2, 2026 - Sep 18, 2026
- The gateway no longer stops answering (or, with KEPServerEX, freezes) after it closes an OPC server connection.
- get-servers now lists only servers registered with the OPC UA discovery server (LDS), each with its endpoint URL.
- A failed request now says why in a "message" field.
- Add trace="1" to the
Fixed an issue with exporting group variables separately in the OPC UA interface. In the same mode, an issue with exporting the group name in other interfaces has also been fixed. Download.
The new OPC HTTP Gateway is available for both OPC DA and OPC UA. This update makes secure deployments the default and fixes a long-standing issue that could stop WebSocket updates after extended run times.
- Modern HTTPS out of the box. When SSL is enabled, the gateway now speaks TLS 1.2 and above with strong ciphers and turns away obsolete, insecure protocols. Still have to support an old client for a while? A new opt-insetting keeps you running until you can upgrade it.
- Reliable real-time streaming. We resolved a problem where, after running for a long time or handling many client connections, the gateway could stop pushing OPC value changes over WebSocket - and stop answering new subscriptions - until it was restarted. It now detects and re-establishes a dropped OPC connection automatically, and always sends a reply to a subscribe / re-subscribe request, so clients are never left waiting in silence.
- Point it at any configuration. The new "-config" command-line option lets you start the gateway with any configuration file - ideal for multi-site setups or keeping configurations in a central folder.
- Hardened and more resilient. Improved login handling for shared connections, timing-safe password checks, protection against oversized or malformed requests, and smoother handling of network interruptions and unresponsive OPC servers.
Existing deployments gain the reliability and security fixes with no configuration changes required. The new version of the software you can download in the Download area.
Now, the program can decode data from LPR (Line Printer Daemon), ZPL (Zebra), and ESC-POS print jobs intended for serial printers used with controllers in industrial or commercial environments. Which further expands the scope of use. More on.
Added support of new versions of popular databases. Please, go to the download area and get an update.
Added support of new versions of popular databases. The new version of the software you can download in the Download area.
Improved support of secure connections for email and HTTPS connections. Please, go to the download area and get an update.
We've updated SSL libraries for secure connections to a newer version. You can find the update in the Download area.
This release fixes a number of reported and internally discovered bugs. Download.
We've added support for new MariaDB, MySQL, Oracle, PostgreSQL database versions. Take a moment and then download it in the Download area.
Fixed an issue when working with multiple groups in a single configuration. Resolved an issue when selecting tags in deeply nested groups. Take a moment and then download it in the Download area.
Improved SQL data source. Added support for newer database versions. Improved data reading on the first launch. Updated standard plugins to the actual version. You can download an update in the Download area.
We've added decoding of new NMEA sentences. Take a moment and then download it in the Download area.
Added more than 20 new MODBUS devices to our database. Please, go to the download area and get an update.
Fixed a bug where the same value was exported if variables in the group were exported separately. You can find the update in the Download area.
Added a possibility to ignore parser items that do not exist in a data packet. You can download an update in the Download area.
Fixed a regression bug with slow program loading. We've improved the OPC UA server security. Various small bugfixes in plugins. Please, go to the download area and get an update.
Added security certificates for the OPC UA server. We've added a new command to generate a certificate for your computer instead of a default one. Download.
Improved security certificates in the OPC UA server. The new version of the software you can download in the Download area.
1. We've significantly improved the MODBUS slave simulation plugin (new interface, storing registry maps to CSV files, new simulation modes).
2. We've fixed some minor bugs in the ASCII/Binary device simulation plugins. More on.
We've improved all plugins (loading time, dialog opening time). Added Japanese, Korean, and Chinese (traditional) translations. Download.
We have accelerated program and backplotter launch. Take a moment and then download it in the Download area.
Continuation of optimizations. The new version starts noticeably faster. It handles data better at high speeds. Please, go to the download area and get an update.
We've fixed the "Message ID not found" software bug introduced in the previous version and polished translation for many languages. Download.
- We refreshed the user interface with new icons and resizable dialog windows.
- New activity logging plugins have been added to export data to SQL databases and CSV.
- Update the help manual to reflect the actual features.
- Programs load more quickly.
- Localizations have been improved and new ones added.
- There are several minor bug fixes and improvements. More on.
We have significantly improved the performance of all specialized tools, such as rotating, renumbering, and scaling, when processing NC programs. It is especially noticeable with large programs. Added and updated translations in some languages. The new version of the software you can download in the Download area.
1. Improved translations in many languages.
2. Added translations for some of the most popular plugins.
3. Added the "MODBUS Scan" plugin, which can scan for MODBUS RTU or ASCII devices on the bus.
4. Added the "Test Sequence" plugin to implement test sequences without scripting, with success/fail statistics.
5. Various small bug fixes and improvements. Download.
We've made it possible to copy an existing configuration. It can help when setting up multiple connections on a server. Please, go to the download area and get an update.
Some bugs have been fixed. Improved support of Xon-Xoff for serial COM ports. Data processing speed optimizations. Take a moment and then download it in the Download area.
Added support for versions 3.13 and 3.14. Discontinued support for all versions before 3.8. Added a few py script examples. Improved examples with timers. Download.
Improved the NMEA data parser. You can find the update in the Download area.
There was a bug that the program couldn't connect to some OPC UA servers before this update fixed it. Download.
Fixed a connection problem in an OPC UA client. Please, go to the download area and get an update.
Fixed a concurrency problem when two or more configurations tried to connect to a database at the same time. The new version of the software you can download in the Download area.
We fixed a bug that meant the plugin wouldn't send data to other plugins if the plugin configuration didn't have any rules. More on.
This update fixes an incompatibility problem with OPC DA and OPC UA simulators on the same computer. More on.
Fixed an issue when the program reconnects to an OPC UA server. Fixed a memory leak in the internal data parser. The new version of the software you can download in the Download area.
Fixed a few memory leaks that mostly appear in initial setup procedures. You can download an update in the Download area.
Added the new "NewLogFile" function to start a new log file in your scripts. Download.
Added the new "NEW_LOG_FILE_IF" function to create a new log file by a user-defined condition. The new version of the software you can download in the Download area.
We've updated OpenSSL libraries and HTTPS certificates along with modern security standards and web browsers. More on.
Updated SSL libraries to the latest version. Updated self-signed certificate for secure HTTPS connections. Take a moment and then download it in the Download area.
Updated SSL libraries to the latest version. More on.
Updated SSL libraries to the latest version. You can find the update in the Download area.
The previous version didn't open help files for some plugins. Take a moment and then download it in the Download area.
Fixed few issues in the installation package and database components in it. Please, go to the download area and get an update.
A couple of fixes in DDE data source interface. More on.
Error handling has been improved when working with printers that don't support text mode or printing to a file. You can find the update in the Download area.
This update fixes some small "bugs". Take a moment and then download it in the Download area.
Fixed two memory leaks. Download.